Cyber Resilience

CVE-2026-5872

High

Published: 08 April 2026

Published
08 April 2026
Modified
13 April 2026
KEV Added
—
Patch
—
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0030 21.8th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-5872 is a high-severity Use After Free (CWE-416) vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Drive-by Compromise (T1189); ranked at the 21.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-5872 is a use-after-free vulnerability (CWE-416) in the Blink rendering engine within Google Chrome versions prior to 147.0.7727.55. This flaw, published on 2026-04-08, carries a CVSS v3.1 base score of 8.8 (High) and was deemed high severity by Chromium security standards.

A remote attacker can exploit the vulnerability via a crafted HTML page, requiring no privileges but user interaction, such as visiting a malicious site over the network. Successful exploitation enables arbitrary code execution confined to the Chrome sandbox, with high impacts on confidentiality, integrity, and availability.

Google addressed the issue in Chrome stable channel version 147.0.7727.55. Security practitioners should apply this update promptly, with further details available in the Chrome release blog at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html and Chromium issue tracker at https://issues.chromium.org/issues/496281816.

EU & UK References

Vulnerability details

Use after free in Blink in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CWE(s)
CWE-416

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Why these techniques?

Use-after-free in Blink enables drive-by compromise (T1189) via crafted HTML page and client-side exploitation for code execution (T1203) in Chrome renderer sandbox.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

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CVE-2026-7355Same product: Apple Macos
CVE-2026-5284Same product: Apple Macos
CVE-2026-9992Same product: Apple Macos
CVE-2026-9118Same product: Apple Macos
CVE-2026-7336Same product: Apple Macos
CVE-2026-7974Same product: Apple Macos
CVE-2026-7352Same product: Apple Macos

Affected Assets

google
chrome
≤ 147.0.7727.55

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires timely remediation of flaws like the use-after-free vulnerability in Chrome's Blink engine by applying the specific patch in version 147.0.7727.55.

RA-5 Vulnerability Monitoring and Scanning good match
detect

Mandates vulnerability scanning that identifies outdated Chrome versions vulnerable to this Blink use-after-free issue.

SI-16 Memory Protection partial match
prevent

Provides memory protection techniques such as stack guards and pointer validation that mitigate exploitation of use-after-free vulnerabilities in rendering engines.

References